baber/WOPTO huggingface dataset:
Patent GB-317949-A (GB)
Title: Improvements in window and door hinges or pivots
IPC: E05D7/08
Filed: 1928-06-29
Abstract: 317,949. Hopkins, C. Y., and Cartland & Son, Ltd., J. June 29, 1928. Pivoting adjustments.- A friction device on a window or door pivot comprises a boss a on the pivot attached to the moving member, encircled by a resilient brake band c which fits into a recess in the fixed member. Attached to the brake band are arms d<1>, d<2> which prevent it from rotating. The frictional surfaces of the boss and brake band may be screw-threaded and the band may be tightened by screws c<1>, c<11>.
Patent GB-1131134-A (GB)
Title: Improvements in or relating to the purification of acrylonitrile
Inventor: HADLEY DAVID JAMES
IPC: B01D3/36
Filed: 1966-04-29
Abstract: 1,131,134. Purification of acrylonitriie. B. P. CHEMICALS (U.K.) Ltd. 31 March, 1967 [29 April, 1966; 22 July, 1966], No. 19021/66 and 32962/66. Heading C2C. The quality of acrylonitrile monomer, prepared by the ammoxidation of propylene or acrolein, is improved by the removal of oxazole from the monomer by hydroextractive distillation of the monomer wherein the volume ratio of water to organic feed is in the range 4À5:1 to 7À3:1. It is preferred to first distil the acrylonitrile to remove an oxazole enriched fraction overhead and subsequently to subject this fraction to the hydroextractive distillation.
Patent GB-512752-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C7/30
Filed: 1937-12-03
Abstract: 512,752. Naphthalene derivatives. KODAK, Ltd. Dec. 3; 1937, No. 19059/39. Convention date, Dec. 3, 1936. Divided out of 512,559. Addition to 503,826. "[Class 2 (iii)] [Also in Group XX] 2:3-Dianilino-d-naphthol may be prepared by the following methods: (1) 1:4-dihydronaphthalene-2:3-dibromide is reacted with two molecules of aniline or inonomethylaniline and the product oxidized and a hydroxyl group introduced into 1-position by, for example, coupling with a diazo compound, diazotizing and heating ; (2) 2:3-dichloronaphthalene or 2:3-dibromotetrahydronaphthalene is reacted with aniline or monomethyl aniline in the presence of copper powder and a hydroxyl group introduced as under (1) above ; (3) the chlorine atom in 2-position in 2:4-dichlor-3- methylanilino-alpha-naphthol is reacted with an aromatic amine. The chlorine atom in 4-position may be removed by catalytic reduction with nickel; (4) 2-chloro-3-methylanilino-alpha-naphthol may be reacted with mono-methylaniline; (5) 2-acetyl-3-methylanilino-alpha-naphthol may be converted into an oxime and this into the compound 2-amino-3-methylanilino-alpha-naphthol or the 2-halogen or 2-carboxylic acid derivatives of 3-methylanilino-alpha-naphthol may be converted to the amines by azo coupling and reduction, or through the 2-azide respectively. The amino group may then be acylated.
Patent GB-949831-A (GB)
Title: Improvements in or relating to measuring instruments
IPC: G01L27/00
Filed: 1960-05-30
Abstract: 949,831. Fluid actuation of switches. A. MARGERIE. May 30, 1960, No. 19068/60. Heading H2B. [Also in Division G1] A microswitch D coupled to the indicating needle A of a measuring instrument is actuated when a lever E, which co-operates with the microswitch, engages a member carried by a manually adjustable pointer. The needle A is driven by a Bourdon tube, diaphragm, or capsule S across a scale C and two manually adjustable pointers G, H, carrying arcs O, N respectively determine the operating pressures of the switch. On rise in pressure the switch remains closed as the lever E rides first on arc O and then arc N, but opens when it disengages arc N. On fall in pressure the switch remains open until the lever E re-engages arc O. In Fig. 2 (not shown) the indicating needle is carried by a pinion driven by a toothed sector carrying a changeover microswitch and its operating lever and the pointers are carried by pinions which drive the arcs.
Patent GB-1465323-A (GB)
Title: Fluid temperature control apparatus
IPC: G01N33/00
Filed: 1974-05-01
Abstract: 1465323 Gas analysis; temperature-controlled dilution by diffusion MELOY LABORATORIES Inc 1 May 1974 19096/74 Heading G1B [Also in Division H5] Apparatus for providing a controlled dilution of a fluid comprises cylindrical housing 16, a cylindrical core in the housing with a side wall 14 spaced from the side wall 12 of the housing to provide a thin flow passage 30 therebetween along the length of the core and having means 36 for admitting fluid to the passage adjacent to one of its ends, closure means 20 for the housing adjacent to the opposite end, means 38 providing communication between the opposite end of the passage and the interior of the core, means 42 providing a fluid outlet from the core adjacent to the one end of the passage, heatexchanger means such as heater winding 76 for exchanging heat with the wall of the housing, means 10 for insulating the exterior of the housing, means 80 for sensing the temperature of the fluid which has passed along the passage, means (not shown) responsive to the temperature sensing means for controlling the heat exchanger means, and a permeable-walled member 54 which extends into the core and from which a second fluid can diffuse into the fluid flowing through the core to provide a controlled dilution of the second fluid for calibration of an analytical device. In another embodiment Fig. 5, (not shown) the permeable-walled member extends axially in the core.
Patent GB-1091842-A (GB)
Title: Improvements in or relating to equipment for erecting tents or shelters,and tents orshelters erected therewith
IPC: E04H15/62
Filed: 1965-05-06
Abstract: 1,091,842. Tents. HEINRICH B. DAUB & SOHN. May 6, 1965 [May 6, 1964], No. 19123/ 65. Heading E1A. The framework for a collapsible tent comprises upright and horizontal bars or tubes of metal or plastics material, connected together by tubular plastics connectors. The connectors may have longitudinally arranged internal raised ribs 50, (Fig. 4, not shown) for gripping the bars. The lower uprights, 10-13, are supported in cylindrical base-plates 14, each with a broken annular lower rim 61 (Figs 7-9, not shown), with downwardly projecting resilient studs arranged around the rim. Each upright is secured to the base-plate by means of a locking member 63, (Figs. 8, 9, not shown), which is U-shaped in elevation, with the upper limb 64 passing through a hole 66 in the upright immediately above the base plate, and with the lower limb being formed into a substantially closed frame, part of which projects outside the rim and is fixed to the ground by a peg 67.
Patent GB-1200294-A (GB)
Title: Signalling system
Inventor: BOLLEN DOUGLAS
IPC: H04B10/11
Filed: 1967-04-15
Abstract: 1,200,294. Photo-electric signalling system. D. BOLLEN. Aug.8, 1967 [May 13, 1966; Aug.18, 1966; April 26, 1967], Nos.21363/66; 37065/66 and 19156/67. Heading G1A. [Also in Divisions H3 and H4] Information is transmitted over a radiation path by intensity modulation of a fluorescent tube. In Fig.1A an information signal supplied at 16 is fed through preamplifier 17, another follower 18 and bass and treble compression arrangements 19 to an amplifier 14. The output of amplifier 14 is fed back via a volume compressor, comprising a lamp 21 and a photo-resistor 23, and fed also to a transformer 13 whose secondary winding drives the tube 11. A 45 kc/s signal, generated by oscillator 25, is also fed to the amplifier 14 in order to swamp noise. Intensity modulated light is received by a caesium antimony photo-cell 31 Fig. 1B primarily responsive to blue or ultraviolet light if a fluorescent tube is used. Coloured filters may be used to increase sensitivity. The photo-cell output is amplified at 32 and 35 and used to operate in this case a loudspeaker 36. In other forms of transmitter the information signal may operate a pulse width modulator whose output amplitude - modulates the intensity of the tube or may amplitude - modulate a carrier signal which drives the tube; both arrangements being described in abridgment group H3-H5. The communication system may be used for ship to shore, car to car or plane to car communication or be used as a remote control system where the information signal is a high frequency signal, e.g. 45 kc/s.
Patent GB-836414-A (GB)
Title: Drive for automatic washer
Inventor: FISHER BERNARD
IPC: D06F37/30
Filed: 1956-06-20
Abstract: 836,414. Clutches, ratchet and positive; operating clutches. EASY WASHING MACHINE CO. Ltd. June 20, 1956, No. 19176/56. Class 80 (2). [Also in Groups VIII and XIII] A washing machine (see Group VIII) comprises a clutch 154, 156 for transmitting oscillatory motion to an agitator shaft 52 when a reversible motor is rotating in one direction, and a clutch 234, 192 which transmits rotation to a tub shaft 74 when the motor is rotating in the opposite direction, the clutch member 154 being automatically operated to lock the shafts 52, 74 together for the second direction of rotation. The clutch member 234 carries rollers 230 which engage cam portions 220 of a cam ring 218 secured on a drive ring 210 driven by a belt 126. Each cam portion comprises a helical part rising from an abutment 222 toward an abutment 224 and terminating in a substantially horizontal part 228. The clutch member 234 has a flat annular surface 236 adapted to engage a friction facing 240 on the member 192. The member 192 is slidably keyed to the shaft 74 and biased downwardly by a spring 194 into braking engagement with spaced friction pads 198 on a flange 200 of a fixed housing member 202. With the motor rotating in one direction the rollers 230 will run up the inclined surfaces and lift clutch member 234 out of braking engagement with the flange 200 and into driving engagement with member 192. The clutch member 154 is slidably keyed to the shaft 52 and has an annular groove 168 engaged by a fork 170 pivoted at 172. The fork 170 has a finger 174 which engages a diagonal slot in the end of an arm 178 pivoted coaxially with a drive gear 134. A spring clip 180 bears on a friction plate (Fig. 8, not shown), engaging the lower peripheral portion of gear 134. According to the direction of rotation of gear 134 so will clutch member 154 be moved downwardly to engage an oscillating pinion 150 or upwardly to engage the shaft 74. The pinion 150 has tapered lugs 156, and the shaft 74 has lugs 160 which are substantially axial on one side and bevelled at 162 on the other side. The lugs 156, 160 are received in correspondingly shaped recesses in the clutch member 154.
Patent GB-401425-A (GB)
Title: Improvements in or relating to screw propellers and screw fans
IPC: B63H5/15
Filed: 1932-07-07
Abstract: 401,425. Screw fans. VILLAMIL, R. DE, 18, Priory Road, Kilburn, London. July 7, 1932, No. 19228. [Class 110 (i).] A screw fan is provided with an annular deflector immediately in front thereof, the deflector having a taper form with its inner surface convex toward its axis and its narrow end directed toward the fan. The convex surface may bo formed by the revolution of a parabola, hyperbola or cycloid about its axis. The casing C is embodied in the supporting wall of the fan member. According to Provisional Specification the deflector need not completely surround the shaft but may be cut away at convenient points.
Patent GB-267391-A (GB)
Title: Improvements in wringing and mangling machines
IPC: D06F45/00
Filed: 1926-08-04
Abstract: 267,391. Entwisle & Kenyon, Ltd., and Kenyon, R. W. Aug. 4, 1926. Addition to 251,070. Drawings to Specification. Pressure arrangements for mangles and wringers.-Spring units, one of which is applied at each end of the roller shafts, comprise three or more columns of single springs, held between compression plates.
Patent GB-139143-A (GB)
Title: Improvements in the process of coating articles with metal
IPC: C23C2/02
Filed: 1919-08-05
Abstract: 139,143. Dudzeele et Cie, G. de. Feb. 18, 1919, [Convention date]. Coating.-Iron or steel articles are thinly coated with an amalgam of an electrolytically-deposited metal such as copper, zinc, or tin before being dipped in molten lead, zinc, or like metal or alloy, no intermediate treatment being necessary. The articles may, after cleaning, be dipped into a solution of a mercury salt and then electroplated thinly with the copper &c., or the copper &c. may be first electro-deposited and then amalgamated by immersion in mercury-salt solution, with or without electrolysis. The amalgam has a great affinity for the molten metal. According to the Specification as open to inspection under Sect. 91 (3) (a) the treatment may be applied to metals other than iron and steel. This subject-matter does not appear in the Specification as accepted.
Patent GB-596503-A (GB)
Title: Piezoelectric frequency determining unit
IPC: F23Q2/28
Filed: 1945-07-27
Abstract: 59 6 , 5 0 3 . Piezo electric crystal mountings. STANDARD TELEPHONES & CABLES, Ltd. July 27, 1945, No. 19293. Convention date, Aug. 4, 1944. [Class 40 (v)] A piezo - electric crystal plate 3 is supported in an insulating housing 1 by contact springs 5 which engage the ends of electrode coatings 4 which extend on to bevelled end surfaces of the crystal. One of the contact springs is formed with a tongue 10 which limits the endwise movement of the crystal. The other end of the crystal engages a groove 11 in a cover 8 which is held to the housing 1 by screws 12 with the interposition of a sealing washer 13. Alternatively, the contact springs 5 and pins 6 may be mounted on the cover, the groove 11 being on the bottom of the housing. The silver electrode coatings may be reinforced with nickel plating at the region of engagement with the contact springs.
Patent GB-530763-A (GB)
Title: Improvements in and relating to sheet-metal cooker structures
IPC: F24C15/10
Filed: 1939-07-03
Abstract: 530,763. Hot-plate stoves. JUNKERS & CO., GES. July 3, 1939, No. 19302. Convention date, July 4, 1938. [Class 126] Stiffening members for sheet-metal hot-plate stoves adapted to resist transversely applied stresses consist of sheet - metal plates 5 extending from the outer walls 2, 3 and sloping inwardly towards the centre, the plates being secured, as by spot welding to adjacent walls.
Patent GB-1212227-A (GB)
Title: Linear pressure differential valve
IPC: F15B13/00
Filed: 1968-04-24
Abstract: 1,212,227. Fluid regulation. SANDERS ASSOCIATES Inc. April 24, 1968 July 24, 1967], No.19479/68. Heading G3H. A linear fluid pressure differential valve, includes, as diagramatically illustrated in Fig.1, a pair of inversely variable orifices A 1  and A 2  which are simultaneously controlled by an input actuator 10, have their input sides connected via an impedance 15 having an orifice of area A x  to a source of pressure P s , and have their output sides connected to a utilization device, the impedance between the variable orifices and the device being represented by orifices 7 and 8 which are preferably of equal area A c , and the output pressure differential between the output sides of the variable orifices being represented by #P c . The presence of the impedance 15, when the value of its area Ax is chosen to lie between 3A c  and 4A c , serves to limit the percentage deviation from perfect linearity between actuator movement and the resultant pressure differential #P c , to approximately 2% for a range of about 70% of the maximum valve operating range, Fig.3 (not shown). As depicted in Fig.5, the orifices A 1  and A 2  are constituted by two parallel grooves 28 and 29 which are formed in sides 24 and 25 respectively of a slider 26 which is movable along, and biased into engagement with correspondingly inclined faces 22 and 23 respectively of a housing 21. Each groove serves to control flow between two ports of a pair, only one port of each pair, namely 33 and 37, being shown in the figure.
Patent GB-453542-A (GB)
Title: Improvements in signs
IPC: G09F13/06
Filed: 1935-07-08
Abstract: 453,542. Signs. MADAN, E. K., 430, Richmond Avenue, Maplewood, New Jersey, U.S.A. July 8, 1935, No. 19524. Convention date, July 11, 1934. [Class 3 (ii)] A sign comprising translucent embossed characters projecting through openings of corresponding contours in an opaque or translucent backing, is characterized in that the backing is formed of canvas or like fibrous material and the characters are secured to the backing by peripheral flange portions thereon which are secured to the rear face of the backing by an adhesive in the presence of heat and under pressure. The Figure shows an embodiment in which an embossed celluloid character 13, projecting through a canvas sheet 10, is secured by flanges 16 to the rear of the sheet. The isolated pieces 12 of the sheet are secured to the character. A plurality of characters may be mounted on a single sheet and -secured at the front of an illuminated casing so as to simulate a neon sign. In another arrangement, the characters are mounted on separate sheets in a rectangular frame which is provided with partitions concealing the abutting edges of the sheets.
Patent GB-1418715-A (GB)
Title: Paper coating compositions containing a synthetic copolymer as  binder
IPC: D21H19/58
Filed: 1973-04-25
Abstract: 1418715 Paper coating composition BADISCHE ANILIN- & SODA-FABRIK AG 25. April 1973 [26 April 1972] 19557/73 Heading C3P. A paper coating composition comprise (1) and binder a copolymer of 5-30 wt. per cent of a mono-olefinically unsaturated carboxylic acid, 5-30% of a mono-olefinically unsaturated monomer containing one or more basic nitrogen atoms, 50-80% of one or more other monomers, other than unsaturated amides or nitriles, which form water-insoluble homopolymers, and optionally up to 15% of acrylonitrile or methacrylonitrile and/or up to 7% of an amide or N-alkoxymethylamide of an α,#-olefinically unsaturated carboxylic acid, (2) a filler and (3) 0À1 to 2 weight per cent of an optical brightener. The compolymers, which may be prepared by conventional emulsion polymerization methods, preferably contain as the basic monomer a compound of the formula wherein A is a C 2 -C 6  divalent hydrocarbon radical, R<SP>1</SP> and R<SP>2</SP> are each H or a C 1 -C 6  hydrocarbon or substituted hydrocarbon radical of 1 to 6 carbons or together, with the nitrogen atom, form a heterocyclic ring, R<SP>3</SP> is H or methyl and n and p are each 1 or 2. The composition also contains a filler, e.g. kaolin, and may contain other constituents such as emulsifiers, and conventional binders, e.g. polyacrylate or butadiene/styrene polymers. Exemplified binders according to the invention are copolymers of ethyl acrylate, acrylic or methacrylic acid and dimethylaminoethyl acrylate or methacrylate or N-methyl-N<SP>1</SP>-hydroxyethylpiperazine acrylate, the compositions being made alkaline with NaOH.
Patent GB-691485-A (GB)
Title: High frequency antennas
IPC: H01Q9/10
Filed: 1950-08-04
Abstract: 691,485. Aerials. ERCOLINO, M. D. Aug. 4, 1950, No. 19622/50. Class 40 (vii). In a wide-band directive aerial system comprising a dipole and spaced parasitic reflector each half of the dipole comprises a V-shaped rod or tubular structure having a horizontal axis with the two arms 27 of the V in a vertical plane, the planes of the two structures being mutually inclined to include an obtuse angle, e.g. 140 degrees, and the reflector comprises four rods 37 disposed as an X in a vertical plane. The embodiment described is for receiving horizontally polarized waves but by a suitable rotation of the system it can be adapted to receive vertically polarized waves. Each V-shaped structure is formed by clamping two rods 27 between two perforated triangular plates having opposed grooves near the edges, Figs. 3-5 (not shown), one of the plates having a bent lug at the apex for attachment to an insulating block mounted at one end of the cross-bar 10 and the reflector rods 37 are mounted at the other end of the cross-bar in a similar manner but the two lugged clamping plates are formed as a single member instead of being separated by insulation. The crossbar is attached to a vertical mast 43 by a U- shaped clamp, Fig. 2 (not shown). If the lengths of the rods 27 and 37 are approximately #/4 at a particular frequency f, the radiation pattern will be substantially constant over a frequency band #-3#, Fig. 6 (not shown).
Patent GB-304565-A (GB)
Title: Improvements relating to athletic over-shoes
IPC: A43B5/18
Filed: 1928-07-06
Abstract: 304,565. Olsson, C., and Lind, R. A. E. July 6, 1928. Athletic overshoes. - An overshoe for wear over the ordinary boot when playing football is constructed of the materials and in the shape commonly used in football boot construction, and comprises a short sole 2, a toe-cap 1, an instep portion 4 secured by lacing 5, and a tongue 3. The overshoe is held on the boot by an adjustable heel strap 7, and studs 8 may be provided on the sole.
Patent GB-1300197-A (GB)
Title: Pipeline pump station by-pass
IPC: F16L55/46
Filed: 1971-06-09
Abstract: 1300197 By-passing pigs around pipe-line pump stations HELMERICH-PAYNE Inc 9 June 1971 [25 June 1971] 19739/71 Heading F2N At a pipe-line pumping station, including a pump (not shown) connected by suction and discharge lines 36, 38 to the main pipeline 32, for boosting the pressure at this point in the pipe-line, a by-pass is provided which becomes automatically operative when a pipe-line pig approaches the station to ensure that the pig passes straight through the pipe-line 32, including a section 9 thereof. In the embodiment shown, an approaching pig is sensed at 15 to cause a controller 60 to close a valve. The fluid flow is then past check valve 5, through ports 43 in section 9, and through branch pipes 10 and header 11 to line 36. Valves 3 and 4 are respectively open and closed at this stage. The pig is trapped in section 9, check valve 6 being closed because of the high pump discharge pressure downstream. When the pig passes a sensor 16, valve 1 is reopened and valve 3 closed. Valve 13 is opened to equalize the pressures on opposite sides of valve V and the valves 4 and 2 are respectively opened and closed. The discharge flow from the pump then passes via header 11 and branch 10 to section 9, thus opening check valve 6 and moving the pig downstream. Sensing of the pig at 17 restores the valves to their normal operating conditions. The pig may be used to separate different fluids in which case the control sequence is so timed that the delay imposed upon the pig in section 9 equals time taken for the interface between the two fluids to travel via the pump to section 9. An interlock for preventing simultaneous partial or total opening of valves 3 and 4 may be provided. A single three-way valve at the junction of header 11 and branch 10 may replace valves 3 and 4.